Package com.graphaware.common.policy.inclusion.spel

Class SpelNodeInclusionPolicy

java.lang.Object

com.graphaware.common.policy.inclusion.spel.SpelInclusionPolicy

com.graphaware.common.policy.inclusion.spel.SpelNodeInclusionPolicy

All Implemented Interfaces:

EntityInclusionPolicy<Node>, InclusionPolicy, NodeInclusionPolicy, ObjectInclusionPolicy<Node>

public class SpelNodeInclusionPolicy
extends SpelInclusionPolicy
implements NodeInclusionPolicy

NodeInclusionPolicy based on a SPEL expression. The expression can use methods defined in AttachedNodeExpressions.

Field Summary

Fields inherited from class com.graphaware.common.policy.inclusion.spel.SpelInclusionPolicy

exp, expressionNode

Constructor Summary

Constructors

Constructor	Description
SpelNodeInclusionPolicy(String expression)

Method Summary

Modifier and Type	Method	Description
Iterable<Node>	getAll(Transaction tx)	Get all Entitys matching the policy from the database.
boolean	include(Node node)	Include the given object?

Methods inherited from class com.graphaware.common.policy.inclusion.spel.SpelInclusionPolicy

equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SpelNodeInclusionPolicy

public SpelNodeInclusionPolicy(String expression)

Method Detail

include

public boolean include(Node node)

Description copied from interface: ObjectInclusionPolicy

Include the given object?

Specified by:

include in interface ObjectInclusionPolicy<Node>

Parameters:

node - to check.

Returns:

true iff the given object should be included.

getAll

public Iterable<Node> getAll(Transaction tx)

Description copied from interface: EntityInclusionPolicy

Get all Entitys matching the policy from the database. This can be a naive implementation retrieving all Entitys and calling the ObjectInclusionPolicy.include(Object) method for each one of them, but it could also be more clever than that and directly retrieve the included Entitys from an index, by label, etc.

Specified by:

getAll in interface EntityInclusionPolicy<Node>

Parameters:

tx - to retrieve the Entitys from.

Returns:

all Entitys matching the policy.